Close Ratio (GTA) gearbox




Alfa GTA "close ratio" Non-Moly; 2:54-1st., 1:70-2nd.,1:26-3rd., 1.0-4th., .085  roller bearing 5th.
    I've opted to retain the ancient "push down for reverse" mechanism as having some charm or character, fitting perfectly with Mortimer's already uniquely individual personality. Got a good shift arm from Nasko. Tho it's not in yet, and it looks like it can be changed "in car" if i can't stand it.

Problem:
    The dia of the105 input shaft was too large for the 2 ltr. bellhousing.
     I used a standard 2 ltr unit from Mortimers old tranny.

Problem:
    Shift rods are longer on the old tranny case. However, by luck, I have what must be an early 2 ltr bellhousing with an opening for the shift rods to poke through and engage the reverse light switch. Unfortunatly, there is a break at the starter which required welding.

Rear tranny seal: 45x60x10mm
Front tranny seal (bellhousing): 26x37x7mm

Giubo- Stock unit with "GTA style" steel cage